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* Prevent canvas custom content from becoming NAC when reframing the root element * Add an API to get computed style values through an AnonymousContent object Tag #1375
60 lines
1.9 KiB
HTML
60 lines
1.9 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<title>Test for bug 1346623</title>
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<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
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</head>
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<body onload="startTest();">
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1346623">Mozilla Bug 1346623</a>
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<div id="display">
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</div>
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<pre id="test">
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<script type="application/javascript">
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var Ci = Components.interfaces;
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var winUtils = window.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIDOMWindowUtils);
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function startTest() {
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// load some styles at the agent level
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var css = `
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#ac-parent { color: green; }
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#ac-child.abc { }
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`;
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var sheetURL = "data:text/css," + encodeURIComponent(css);
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winUtils.loadSheetUsingURIString(sheetURL, winUtils.AGENT_SHEET);
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// add canvas anonymous content
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var bq = document.createElement("blockquote");
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bq.id = "ac-parent";
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bq.textContent = "This blockquote text should be green.";
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var div = document.createElement("div");
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div.id = "ac-child";
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div.textContent = " This div text should be green.";
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bq.appendChild(div);
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var ac = document.insertAnonymousContent(bq);
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document.body.offsetWidth;
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is(ac.getComputedStylePropertyValue("ac-child", "color"), "rgb(0, 128, 0)",
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"color before reframing");
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// reframe the root
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document.documentElement.style.display = "flex";
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document.body.offsetWidth;
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// restyle the div
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ac.setAttributeForElement("ac-child", "class", "abc");
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document.body.offsetWidth;
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is(ac.getComputedStylePropertyValue("ac-child", "color"), "rgb(0, 128, 0)",
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"color after reframing");
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SimpleTest.finish();
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}
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SimpleTest.waitForExplicitFinish();
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</script>
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</pre>
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</body>
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</html>
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